Jikag, I knew there is f.lux for IOS but I wouldn't think it was available for windows already. I guess I had to be more careful before I start writing a question. Thank you.
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Bonus KunNov 29 '12 at 16:45

Note that f.lux does not change the brightness but the temperature.
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a_maarNov 29 '12 at 16:46

@a_maar, I just noticed what you said. when I plugged in the charger, the brightness goes all the way up. Do you know any alternative solution to this? F.lux saves my eyes for now, I need also a brightness changer... God, I wish flux would do the both...
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Bonus KunNov 29 '12 at 16:55

Love F.lux, and how the tone of my screen changes throughout the day, and also reminds me to go home!
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woneaNov 29 '12 at 17:20